4921603529261 has 2 divisors, whose sum is σ = 4921603529262. Its totient is φ = 4921603529260.

The previous prime is 4921603529233. The next prime is 4921603529287. The reversal of 4921603529261 is 1629253061294.

4921603529261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2767149075625 + 2154454453636 = 1663475^2 + 1467806^2 .

It is a cyclic number.

It is not a de Polignac number, because 4921603529261 - 2¹⁸ = 4921603267117 is a prime.

It is a super-2 number, since 2×4921603529261² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4921603523261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460801764630 + 2460801764631.

It is an arithmetic number, because the mean of its divisors is an integer number (2460801764631).

Almost surely, 2^{4921603529261} is an apocalyptic number.

It is an amenable number.

4921603529261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4921603529261 is an equidigital number, since it uses as much as digits as its factorization.

4921603529261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 4921603529261 in words is "four trillion, nine hundred twenty-one billion, six hundred three million, five hundred twenty-nine thousand, two hundred sixty-one".